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Fencer Vulns
medium 5.5

CVE-2020-8698 json

Improper isolation of shared resources in some Intel(R) Processors may allow an authenticated user to potentially enable information disclo…

published 2020-11-12 5 y ago modified 2026-06-17 4 mo ago also EUVD-2020-29546

cvss
5.5
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.5%
EPSS 0.5% chance of exploitation in 30 days, percentile 44%
public exploits
0
none known

Summary

Improper isolation of shared resources in some Intel(R) Processors may allow an authenticated user to potentially enable information disclosure via local access.

Patch / fix

  • siemens simatic_field_pg_m5_firmware 22.01.08
  • siemens simatic_ipc427e_firmware 21.01.15
  • siemens simatic_ipc477e_firmware 21.01.15
  • siemens simatic_ipc477e_pro_firmware 21.01.15
  • siemens simatic_ipc627e_firmware 25.02.08
  • siemens simatic_ipc647e_firmware 25.02.08
  • siemens simatic_ipc677e_firmware 25.02.08
  • siemens simatic_ipc847e_firmware 25.02.08
  • siemens simatic_itp1000_firmware 23.01.08
  • intel-microcode Debian 14, Debian 13, Debian 12 3.20201110.1

debian advisories DEBIAN-CVE-2020-8698

  • intel-microcode Ubuntu 16.04 LTS 3.20201110.0ubuntu0.16.04.1
  • intel-microcode Ubuntu 18.04 LTS 3.20210216.0ubuntu0.18.04.1
  • intel-microcode Ubuntu 20.04 LTS 3.20210216.0ubuntu0.20.04.1
  • intel-microcode Ubuntu Pro 14.04 LTS 3.20201110.0ubuntu0.14.04.1

ubuntu advisories UBUNTU-CVE-2020-8698

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • microcode_ctl RHEL 7 2:2.1-73.11.el7_9
  • microcode_ctl RHEL 8 4:20210216-1.20210608.1.el8_4
  • microcode_ctl RHEL 6 2:1.17-33.31.el6_10
  • microcode_ctl RHEL 8 4:20200609-2.20201027.1.el8_3
  • microcode_ctl RHEL 7 2:2.1-73.2.el7_9
  • microcode_ctl RHEL 7.3 AUS 2:2.1-16.42.el7_3
  • microcode_ctl RHEL 7.2 AUS 2:2.1-12.39.el7_2
  • microcode_ctl RHEL 7.6 TUS, RHEL 7.6 E4S, RHEL 7.6 AUS 2:2.1-47.23.el7_6

red hat advisories RHSA-2021:3322RHSA-2021:3323RHSA-2021:3317RHSA-2021:3364RHSA-2021:3255RHSA-2021:3176

  • ucode-intel SLES for SAP 12 SP4, SLES for SAP 12 SP3, SLES for SAP 12 SP2 +12 more 20201118-13.81.1
  • ucode-intel SLES for SAP 12 SP5, SLES 12 SP5 20201110-3.23.1
  • ucode-intel SLES for SAP 15, SLE High Performance Computing 15-LTSS, SLE High Performance Computing 15-ESPOS 20201110-3.55.1
  • ucode-intel SLE Module for Basesystem 15 SP2 20201110-2.10.1
  • ucode-intel SLE Module for Basesystem 15 SP1 20201110-3.39.1
  • microcode_ctl SLES 11 SP4-LTSS, SLE Point of Sale 11 SP3 1.17-102.83.62.1
  • microcode_ctl SLES 11 SP4-LTSS, SLE Point of Sale 11 SP3 1.17-102.83.59.1
  • ucode-intel SLES for SAP 12 SP4, SLES for SAP 12 SP3, SLES for SAP 12 SP2 +12 more 20201027-13.76.1

suse advisories SUSE-SU-2020:3514-1SUSE-SU-2020:3457-1SUSE-SU-2020:3374-1SUSE-SU-2020:3373-1SUSE-SU-2020:3372-1SUSE-SU-2020:14546-1

  • ucode-intel openSUSE Tumbleweed 20210608-1.2
  • ucode-intel openSUSE Leap 15.1 20201118-lp151.2.33.1
  • ucode-intel openSUSE Leap 15.2 20201118-lp152.2.8.1

opensuse advisories openSUSE-SU-2024:11478-1openSUSE-SU-2020:2098-1openSUSE-SU-2020:2075-1

  • microcode_ctl Rocky Linux 8 4:20210216-1.20210608.1.el8_4

rocky linux advisories RLSA-2021:3027

  • intel-ucode Alpine 3.24, Alpine 3.23, Alpine 3.22 +10 more 20201110-r0
  • intel-ucode Alpine 3.24, Alpine 3.23, Alpine 3.22 +10 more 20201112-r0
  • intel-ucode Alpine 3.24, Alpine 3.23, Alpine 3.22 +10 more 20210216-r0

alpine advisories ALPINE-CVE-2020-8698

Alpine secdb © Alpine Linux, from https://secdb.alpinelinux.org via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • intel-ucode Arch Linux 20210216-1

arch linux advisories AVG-1588

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2020-8698 updated cvss 5.5

hw: Fast forward store predictor

  • Red Hat Enterprise Linux 5 microcode_ctl
    affected: no fix planned “Out of support scope”
  • Red Hat Enterprise Linux BaseOS (v. 8) microcode_ctl 20200609-2.20201027.1.el8_3, microcode_ctl 20210216-1.20210608.1.el8_4
    fixed: vendor fix RHSA-2020:5085
  • Red Hat Enterprise Linux BaseOS E4S (v. 8.0) microcode_ctl 20180807a-2.20201112.1.el8_0
    fixed: vendor fix RHSA-2020:5186
  • Red Hat Enterprise Linux BaseOS EUS (v. 8.1) microcode_ctl 20190618-1.20201112.1.el8_1, microcode_ctl 20190618-1.20210608.1.el8_1
    fixed: vendor fix RHSA-2020:5369
  • Red Hat Enterprise Linux BaseOS EUS (v. 8.2) microcode_ctl 20191115-4.20201112.1.el8_2, microcode_ctl 20191115-4.20210608.1.el8_2
    fixed: vendor fix RHSA-2020:5185
  • Red Hat Enterprise Linux Client (v. 7) microcode_ctl 2.1-73.2.el7_9, microcode_ctl 2.1-73.11.el7_9
    fixed: vendor fix RHSA-2021:3028
  • Red Hat Enterprise Linux ComputeNode EUS (v. 7.6) microcode_ctl 2.1-47.18.el7_6
    fixed: vendor fix RHSA-2020:5181
  • Red Hat Enterprise Linux ComputeNode EUS (v. 7.7) microcode_ctl 2.1-53.13.el7_7, microcode_ctl 2.1-53.18.el7_7
    fixed: vendor fix RHSA-2020:5190
show 18 more
  • Red Hat Enterprise Linux Desktop (v. 6) microcode_ctl 1.17-33.31.el6_10 Red Hat Enterprise Linux HPC Node (v. 6) microcode_ctl 1.17-33.31.el6_10 Red Hat Enterprise Linux Server (v. 6) microcode_ctl 1.17-33.31.el6_10
    fixed: vendor fix RHSA-2020:5084
  • Red Hat Enterprise Linux Server (v. 7) microcode_ctl 2.1-73.2.el7_9, microcode_ctl 2.1-73.11.el7_9
    fixed: vendor fix RHSA-2021:3028
  • Red Hat Enterprise Linux Server AUS (v. 6.5) microcode_ctl 1.17-17.34.el6_5
    fixed: vendor fix RHSA-2020:5189
  • Red Hat Enterprise Linux Server AUS (v. 6.6) microcode_ctl 1.17-19.32.el6_6
    fixed: vendor fix RHSA-2020:5184
  • Red Hat Enterprise Linux Server AUS (v. 7.2) microcode_ctl 2.1-12.34.el7_2, microcode_ctl 2.1-12.39.el7_2
    fixed: vendor fix RHSA-2020:5188
  • Red Hat Enterprise Linux Server AUS (v. 7.3) microcode_ctl 2.1-16.37.el7_3, microcode_ctl 2.1-16.42.el7_3
    fixed: vendor fix RHSA-2020:5183
  • Red Hat Enterprise Linux Server AUS (v. 7.4) microcode_ctl 2.1-22.36.el7_4, microcode_ctl 2.1-22.41.el7_4
    fixed: vendor fix RHSA-2020:5182
  • Red Hat Enterprise Linux Server AUS (v. 7.6) microcode_ctl 2.1-47.23.el7_6
    fixed: vendor fix RHSA-2021:3317
  • Red Hat Enterprise Linux Server E4S (v. 7.3) microcode_ctl 2.1-16.37.el7_3
    fixed: vendor fix RHSA-2020:5183
  • Red Hat Enterprise Linux Server E4S (v. 7.4) microcode_ctl 2.1-22.36.el7_4, microcode_ctl 2.1-22.41.el7_4
    fixed: vendor fix RHSA-2020:5182
  • Red Hat Enterprise Linux Server E4S (v. 7.6) microcode_ctl 2.1-47.23.el7_6
    fixed: vendor fix RHSA-2021:3317
  • Red Hat Enterprise Linux Server EUS (v. 7.6) microcode_ctl 2.1-47.18.el7_6
    fixed: vendor fix RHSA-2020:5181
  • Red Hat Enterprise Linux Server EUS (v. 7.7) microcode_ctl 2.1-53.13.el7_7, microcode_ctl 2.1-53.18.el7_7
    fixed: vendor fix RHSA-2020:5190
  • Red Hat Enterprise Linux Server TUS (v. 7.3) microcode_ctl 2.1-16.37.el7_3
    fixed: vendor fix RHSA-2020:5183
  • Red Hat Enterprise Linux Server TUS (v. 7.4) microcode_ctl 2.1-22.36.el7_4, microcode_ctl 2.1-22.41.el7_4
    fixed: vendor fix RHSA-2020:5182
  • Red Hat Enterprise Linux Server TUS (v. 7.6) microcode_ctl 2.1-47.23.el7_6
    fixed: vendor fix RHSA-2021:3317
  • Red Hat Enterprise Linux Workstation (v. 6) microcode_ctl 1.17-33.31.el6_10
    fixed: vendor fix RHSA-2020:5084
  • Red Hat Enterprise Linux Workstation (v. 7) microcode_ctl 2.1-73.2.el7_9, microcode_ctl 2.1-73.11.el7_9
    fixed: vendor fix RHSA-2021:3028

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

cisa ICSA-22-132-05 updated cvss 5.5

Siemens Industrial PCs and CNC devices

  • Siemens SIMATIC Field PG M5 <BIOS_V22.01.08
    affected: fixed in V22.01.08, mitigation support.industry.siemens.com
  • Siemens SIMATIC Field PG M6 <V26.01.08
    affected: fixed in V26.01.08, mitigation support.industry.siemens.com
  • Siemens SIMATIC IPC427E (incl. SIPLUS variants) <BIOS_V21.01.15 Siemens SIMATIC IPC477E <BIOS_V21.01.15 Siemens SIMATIC IPC477E Pro <BIOS_V21.01.15
    affected: fixed in V21.01.15, mitigation support.industry.siemens.com
  • Siemens SIMATIC IPC627E <BIOS_V25.02.08 Siemens SIMATIC IPC647E <BIOS_V25.02.08 Siemens SIMATIC IPC677E <BIOS_V25.02.08 Siemens SIMATIC IPC847E <BIOS_V25.02.08
    affected: fixed in V25.02.08, mitigation support.industry.siemens.com
  • Siemens SIMATIC ITP1000 <BIOS_V23.01.08
    affected: fixed in V23.01.08, mitigation support.industry.siemens.com

Facts from CISA's republication of the vendor's own advisory (CSAF); the linked advisory is the authoritative source. CISA notification · csaf

Exploit prediction

0.52% chance of exploitation in the next 30 days, higher than 44% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 3.1 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
NVD 2.0 2.1 AV:L/AC:L/Au:N/C:P/I:N/A:N

Affected products

  • n/a Intel(R) Processors

Classification

Weakness
  • CWE-668 Exposure of Resource to Wrong Sphere

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.